Multicolor-press



L. FRIEDMAN.

MULTICOLOR PRESS.

APPLICATION FILED SEPTL I6. 1920.

1,396,827 Patented Nov. 15, 1921.

2 SHEETS-SHEET I.

A TTORNEYS L.FRIEDMAN.

MULTICQLOR PRESS. I APPLICATION FILED sEPTI I6, 1920.

1,396,827. Patented Nov. 15, 1921.

2 SHEETS-SHEET 2.

A TORNEI/ UNITED STATES M'IENT OFFICE.

Louis FBIEDMAN, or NEW YORK, iv. Y.

. MULTICOLOR-PRESS.

` To all inkom it may concern.'

Be it known that I, Louis FRIEDMAN, a citizen of the United States,residing atNew York city, borough of Manhattamin the county and State`of New `York, `have invented a certain new and useful Multicolor-`Thisinvention relates 4to improvements iu multi-color presses, andembodies, more partlcularly, a `construction which is adapted to Press,of which the following is a specifica- `bevused on or in connection withordinary job` printing presses, whichenable `printing to beexpeditiously turned out in colors.

Heretofore, multi-color presses have been rather complex, expensivestructures, and, for these reasons, havenot been available toordinaryjob printers. Thepresent invention, however, because of itssimplicity and eiciency in operation, its ease of attachment to ordinaryj ob printing presses, and,` its economy in manufacture, renders `it ofspecial commercial value in itsintended field of use.

Various features ofthe invention, as well as their functions andadvantages, will be ap parent from the hereinafterdetailed descriptionread in conjunction with `the accompanying drawings. L

The accompanying drawings illustrate one practical embodiment of theinvention, but the: construction therein `shown is toA be understood asillustrative, only, and not `as f delining the limts of the invention.

rig. 2.

i su porting posts. i

` i 1 the spindle of a large ink plate from which eferring to thedrawings, 1 designates a plate supporting bar of an ordinary jobprinting press. This bar is provided with a socket 2 in which is usuallyadapted to lit ink is supplied through a form roller 3 to the form ortype of the press.

`In carrying out the present invention, the single large inking plate isremoved and in lieu thereof, a plurality of smaller plates 4Specification of Letters Patent. l Patentgd NOV, 15 1921; Applicationfiled` september 1e, 1920. serial are employed, all of which smallerplates are organized as a unit so as to be readily placed in position onthe press, after the removal of the single plate usually employed. Tothis end, a yoke 5 is provided, which has a de-` pending stem or arbor 6adapted to seat into .thesocket 2 of the supporting bar l, while theupstanding vlegs of the yoke 5 are rigidly secured by means of screws 7to a beam 8. On this beam 8 are mounted the several inl:

plates 4 `in such manner that they may be of which depends from thecenter of each inking plate 4 as shown best in Figs. 3 and 4. In thismanner, the several inking plates are supported on the bar 8, but may beslid longitudinally of the bar so as to ink the proper portion of theform roll 3 inaccordance with the placement of the type in the l form tocorrespond with the colors desired.

'The plates, however, may be locked in place by means `of set screws 15,one of which is associated with each post 9.

It will be noted that each plate is mounted for rotation on itsrespective post, whilethe bar 8 is mounted for rotation on the part 1 ofthe press. The bar 8 is, however, normally locked aga-inst rotation withreference tothe press by any suitable means such as a set screw (notshown) which may be threaded through the part 1 and engage with the sideof the arbor 6. y

For the proper functioning of the press, and more particularly for theproper distribution of the ink, the plates 4 should be revolved and thismay be accomplished by gearing all of the parts together and driving anyone of them. In the showing made, I form on the inner side of each platean annular rack 16 adapted to cooperate with a gear 17, fixed on theoperating shaft 12. As stated, the operating shaft is journaled in thepassages 11 of the posts 9, and each gear is secured to this shaft by aset screw so that when one of the plates is rotated, all will besimultaneously rotated. I find it convenient to drive the plates fromone of the end plates by forming on the under side thereof,

an annular series of ratchet teeth 18 as shown best in Figs. 2 and 3 andwith these ratchet teeth is lassociated a ratchet 19, which may beoperated, from any suitable moving part of the press to impart to theratchet, toothed plate 4, a step by step rov tary movement, which willbe transmitted through the racks and gears and through the shaft l2 tothe other plates so that they will all be turned in unison, for thepurpose of properly distributing the ink.

It will be noted that the plates l are arranged in diagonal relationwith reference to the travel of the form roller 3 and this is thepreferable arrangement since the plates .4 are smaller in diameter thanthe single tating a reorganization of the press and enabling it to bereadily reeonverted into a single color press with a single ink plate asoriginally employed if desired. The present y invention may be employedin this manner in the nature of an attachment, although, if desired, thenovel' features of this invention may be availed of in pressconstruction for the manufacture of a permanent multi-color press. Y x

I-Iaving thus fully describedthe invention, what 'I claim as new anddesire to secure by Letters Patent is:

1. A-multi-color printing press embodying a form roller, a plurality ofink plates mounted lon fixed axes in the'path of the forml roller andpositioned at spaced disy tances apart in oblique rel-ation to thedirection of travel of the form roller so as to form a support for theform roller during its entire travel over the ink plates in succession,each of said plates being adapted to contain ink of a predeterminedcolor, whereby different portions of the length of the form rollerreceive ink of a corresponding color from the cooperating plates.

2. A multi-eolor printing press embodying a form roller, a plurality ofink plates arranged in the path of the form roller and positioned atspaced distances apart in oblique relation to the direction of travel ofthe form roller so as to form a support for the form roller during itsentire travel over the ink plates in succession, each of said platesbeing adapted to contain ink ot a predetremined color, whereby differentportions of the length of the form roller receive ink of a correspondingcolor from the coperating plates, a planatory gear associated with eachplate, an operating shaft provided with gears meshing with the planatorygears of the respective plates and yratchet mechanism associated withone of said plates and operable by some moving part of the press forimparting rotation to the plates to assure proper distribution of theink thereon.

3. An attachment for printing presses embodying a supporting member, aplurality of ink plates positioned in eschelon with respect to the pathof the form roller of the associated press and mounted on the supportingmember for rotation on fixed axes so as to form a support for said formroller during its entire travel over the plates in succession, meansassociated with the supporting member for rigidly mounting it on aprinting press in place of the single plate ordinarily employed thereon,and means for rotating the ink plates on their fixed axes while thesupporting member remains stationary.

In testimony whereof, I have signed my name to this specification. y

LOUIS FRIEDMAN.

